Sash-lock for windows.



PATENTED OCT. 27,1903.

0. HOSKYNS. SASH LOOK FOR WINDOWS.

APIPLIOATION FILED MAY 6, 1903.

N0 MODEL.

IN VE/V TOR 624r/a /wk /2$ 6%M2U6 A TTOHNEYS WITNESSES ,1 4

UNITED STATES Patented October 27, 1.903.

PATENT ()FFICE.

SASH-LOCK FQRWINDOWS.

SPECIFICATION forming part of Letterslatent No. 74.2,658, dated October27, 1903.

Application filed May 6,

1903. semi n5. 155.804. (No model.)

To alZ whom it may concern: 7

Be it known that I, CHARLES HOSKYNS, a subject of the King of GreatBritain, residing at Bradford, in the county of York, England, haveinvented certain H new'and useful Improvements in SaslPLocks'forWindows, of which the following is a specificatiom'such as will enablethoseskilled in the art towhich it appertains to make and use the same.

The object of this invention is to provide an improved sash-lockattachment for the sashes of windows whereby either 'or both of thesashes may be opened so 'as to admit of ventilation, the constructionand arrangement being such that the sashes cannot be opened beyond apredetermined 'point from the outside of a window.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my improvement are designated by suitable reference characters ineach 4 of the views, and in which- Figure 1 is a vertical sectionthrough both the upper and lower sashes of a window and showing myimprovement applied to the upper sash; Fig. 2, a partial section on theline 2 2 of Fig. 3, and Fig. 3 a section on the line 3 3 of Fig.1and'showing'the parts in the position shown in Fig.2.

In the drawings forming part of this specification I have shown at a,and b, respectively, the upper and lower sashes of a window, and in thepractice of one side of the upper sash an attachment 0, having avertically-arranged slot, recess, or chamber d, which opens forwardlyand upwardly and the back wall of which near its lower end is providedwith a forwardly-directed projection d and at its upper end with aforwardly-directed projection (1 and the projection diextends nearer thefront end of the attachment'than the projection d Passing transversely.through the attachment 0 centrally. thereof is a pin or screw e, onwhich is mounted a dog f,. provided with a longitudinal slot f throughwhich the pin or screw 6 passes, and the dog f is provided at its lowerend with a downwardly and inwardly directed nose f and rearwardlythereof with a heel-piece f and the form, construction, and dimensionsof these parts are such that when the dog f is in a downwardlydirectedposition,

my invention I secureto' asshown in Fig. 2, the full length of the nose1? projects over the lower sash, as is also shown in said figure, andthe heel portion 1 presses against the back of the top portion of thelower sash, or will do so if an attempt be made to raise the lower sashor lower the upper sash. If'an' attempt be made to raise the lower sashor lower the upper sash, the dog will also move up into the positionshown in dotted lines in Fig. 2, in which the upper end thereof pressesagainst the projection (i andthis will limit the movement of the sashes.When the dog f is in its upright position, as shown in Fig. 1, the uppersash may be lowered and the lower sash raised to any extent; but'whenthe dog f is in the position sh own in Fig. 2 the movement of eithersash will depend on the distance of the attachment 0 from the bottom oftheupper sash, and this distance may be regulated as desired.

This device is simple in construction and operation and perfectlyadapted to accomplish the result for which it is intended and is alsocomparatively inexpensive and may be applied to ordinary window-sasheswhenever desired.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

A sash-lock attachment adapted to be secured to one side of the uppersash of a window and provided with a dog which is pivoted therein orthereto and provided with a longitudinal slot through which thepivot-pin passes, said dog being also provided at one end with aprojecting nose and rearwardly thereof with a heel-piece, and theattachment being provided near the bottom thereof and near the topthereof with forwardly-directed projections the bottom projection beingnearer the front of the attachment than the top projection,substantially as shown and described. v

In testimony that I claim the foregoing as my invention I have signed myname, in pres.- ence of the subscribing witnesses, this 21st day ofApril, 1903.

CHARLES HOSKYNS.

Witnesses CHARLES EDWARD KENDREW,

BERNARD DARcY HOSKYNS.

